Akkerman's manned Tunnel Boring Machines (TBMs) are the
epitome of pipe Jacking power, control and accuracy in an
array of soil conditions. TBMs are suitable where manned entry
is permissible. Akkerman TBMs can be used with any jacking
pipe up to 14-ft. (-1.3 m) in diameter and a multitude of drive
lengths. Designed for unequaled ease of set-up, the Akkerman
system can typically be set up and ready to launch in one day.
The TBM steering joint allows for full articulation and active
steering control while the torque wings provide an anti-roll
function. The operator console, located near the face of the
machine, permits constant monitoring of soil conditions and
line and grade. Hydraulic motors rotate the inner drum and
cutter face to excavate soils. The laser, positioned down the
tunnel from the laser stand at the tunnel entrance to the target
on the face of the TBM, provides articulation precision.